HbA1c
Hemoglobin A1c (HbA1c), also known as glycated hemoglobin, glycosylated hemoglobin, or simply A1c, is a blood test that provides valuable information about a person's average blood glucose (sugar) levels over the preceding two to three months. Unlike daily blood glucose tests that capture a single moment in time, HbA1c offers a longer-term picture of blood sugar control, making it an essential tool for diagnosing and managing diabetes mellitus.